Line Graphs

Front

What is a line graph?

Back

A line graph is a type of chart that displays information as a series of data points called 'markers' connected by straight line segments. It is commonly used to visualize trends over time.

Front

What does a constant line in a line graph indicate?

Back

A constant line in a line graph indicates that the value represented does not change over the specified period.

Front

How can you determine the increase or decrease in values on a line graph?

Back

You can determine the increase or decrease in values on a line graph by observing the slope of the line; an upward slope indicates an increase, while a downward slope indicates a decrease.

Front

What is the significance of the x-axis and y-axis in a line graph?

Back

The x-axis typically represents the independent variable (e.g., time), while the y-axis represents the dependent variable (e.g., quantity or value).

Front

How do you calculate the percentage of a specific category in a total?

Back

To calculate the percentage of a specific category, divide the number of items in that category by the total number of items, then multiply by 100.

Front

What does it mean if a line graph shows a steep slope?

Back

A steep slope in a line graph indicates a rapid change in the value being represented, either an increase or a decrease.

Front

What type of data is best represented by a line graph?

Back

Line graphs are best used for continuous data that changes over time, allowing for the visualization of trends.

Front

How can you identify trends in a line graph?

Back

Trends in a line graph can be identified by observing the overall direction of the line (upward, downward, or stable) over a period.

Front

What is the purpose of labeling axes in a line graph?

Back

Labeling axes in a line graph provides context for the data being represented, helping viewers understand what each axis measures.

Front

What does it indicate if two lines on a line graph intersect?

Back

If two lines on a line graph intersect, it indicates that the values represented by the two lines are equal at that point in time.